S235JR material specification

S235JR is a carbon steel grade specified in the European standard EN 10025-2. The material specification for S235JR includes the following:

Chemical Composition:

Carbon (C): Maximum 0.17%

Silicon (Si): Maximum 0.35%

Manganese (Mn): Maximum 1.40%

Phosphorus (P): Maximum 0.035%

Sulfur (S): Maximum 0.035%

Mechanical Properties:

Tensile Strength: 360-510 MPa

Yield Strength: 235 MPa minimum

Elongation: 26% minimum

Impact Testing:

Charpy V-notch impact testing at room temperature (20°C or 27 joules minimum)

Forming and Weldability: S235JR has good formability and can be easily welded using conventional methods.

Equivalent Grades: S235JR is often considered equivalent to ASTM A36, DIN ST37-2, JIS SS400, and other similar carbon steel grades.

S235JR is used in a variety of structural applications, such as construction, bridges, machinery, and general engineering. It is a versatile and widely used material due to its moderate strength, good weldability, and affordability.